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Mathematics 12 Online
OpenStudy (anonymous):

Find the indicated sum.

OpenStudy (anonymous):

\[\sum_{i=1}^{5}(i+11) \] A. 28 B. 16 C. 70 D. 54 The finite sequence whose general term is an = 0.17n2 - 1.02n + 6.67 where n = 1, 2, 3, ..., 9 models the total operating costs, in millions of dollars, for a company from 1991 through 1999. \[Find \sum_{i=1}^{5}a _{i}\] A. $21.58 million B. $27.4 million C. $23.28 million D. $29.1 million

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